Air to ground signaling enhancement for cross-waveform interference measurement and reporting

Abstract

A method includes: communicating with a base station using a first waveform; receiving configuration information specifying an interference measurement resource associated with a second waveform different from a channel measurement resource associated with the first waveform; performing channel measurement associated with the first waveform and interference measurement associated with the second waveform, according to the configuration information; and providing channel state information (CSI) feedback to the base station, the CSI feedback based at least in part on the channel measurement and the interference measurement.

1 . A method performed by a user equipment (UE), the method comprising:
 communicating with a base station using a first waveform;   receiving configuration information specifying an interference measurement resource associated with a second waveform different from a channel measurement resource associated with the first waveform;   performing channel measurement associated with the first waveform and interference measurement associated with the second waveform, according to the configuration information; and   providing channel state information (CSI) feedback to the base station, the CSI feedback based at least in part on the channel measurement and the interference measurement.   
     
     
         2 . The method of  claim 1 , wherein the configuration information comprises a resource setting in a channel state information (CSI)-ReportConfig signal. 
     
     
         3 . The method of  claim 1 , wherein the interference measurement resource associated with the second waveform comprises a channel state information reference signal (CSI-RS). 
     
     
         4 . The method of  claim 1 , wherein the interference measurement resource associated with the second waveform comprises a channel state information interference measurement (CSI-IM). 
     
     
         5 . The method of  claim 1 , wherein the first waveform comprises orthogonal frequency division duplexing (OFDM), and wherein the second waveform comprises orthogonal time frequency space (OTFS). 
     
     
         6 . The method of  claim 1 , wherein the channel measurement resource associated with the first waveform comprises a nonzero power channel state information reference signal (NZP-CSI-RS). 
     
     
         7 . The method of  claim 1 , wherein the CSI feedback comprises a channel quality indicator (CQI) based at least in part on the interference measurement associated with the second waveform. 
     
     
         8 . The method of  claim 1 , wherein the configuration information provides information about the second waveform. 
     
     
         9 . The method of  claim 1 , wherein the configuration information indicates a component carrier or bandwidth part associated with the second waveform. 
     
     
         10 . The method of  claim 1 , wherein the configuration information identifies a time domain offset associated with a starting slot of the interference measurement resource, wherein the time domain offset is identified by an item selected from a list consisting of: a number of symbols of a monitored bandwidth part and time units. 
     
     
         11 . The method of  claim 1 , wherein the configuration information identifies time domain drifting rate information, wherein the time domain drifting rate is further identified by at least one update identifying additional offset subsequent to a number of slots or symbols, and further wherein the time domain drifting rate is identified by an item selected from a list consisting of: a number of symbols of a monitored bandwidth part, and time units. 
     
     
         12 . The method of  claim 11 , wherein the update is received from an item selected from a list consisting of:
 a downlink control indicator (DCI);   a media access control-control element (MAC-CE); and   a radio resource control (RRC) signal.   
     
     
         13 . The method of  claim 1 , wherein the configuration information identifies time domain drifting information of the interference measurement resource, further wherein the time domain drifting information is specific to the interference measurement resource or is specific to a set to which the interference measurement resource belongs. 
     
     
         14 . The method of  claim 1 , where the configuration information identifies time domain drifting information of the interference measurement resource, further wherein the time domain drifting information is provided by an item selected from a list consisting of:
 a channel state information (CSI)-ReportConfig signal having a time domain drifting information element with a time domain drifting information index; and   a CSI-ReportConfig signal identifying the interference measurement resource with a time domain drifting information index.   
     
     
         15 . The method of  claim 1 , further comprising:
 transmitting an uplink signal including an indication of a capability of the UE for monitoring a different waveform, wherein the capability of the UE comprises a number of different waveforms that can be monitored for channel measurement resources or interference measurement resources with respect to a given waveform associated with a physical downlink shared channel (PDSCH) of the UE; and   wherein the configuration information indicates the second waveform to be monitored, the second waveform being selected based at least in part on the capability of the UE.   
     
     
         16 . The method of  claim 1 , wherein the UE comprises an air to ground (ATG) UE. 
     
     
         17 - 21 . (canceled) 
     
     
         22 . A user equipment (UE) comprising:
 a transceiver; and   a processor configured to control the transceiver, the processor further configured to:
 process configuration information from a base station (BS) specifying a channel measurement resource associated with a first waveform and an interference measurement resource associated with a second waveform different from the first waveform, the first waveform corresponding to a downlink configuration of the UE; 
 perform channel measurement associated with the first waveform and interference measurement associated with the second waveform, according to the configuration information; and 
 provide channel state information (CSI) feedback to the base station, the CSI feedback based at least in part on the channel measurement and the interference measurement. 
   
     
     
         23 . The UE of  claim 22 , wherein the UE comprises a terrestrial UE. 
     
     
         24 . The UE of  claim 22 , wherein the UE comprises an air to ground (ATG) UE. 
     
     
         25 . The UE of  claim 22 , wherein the configuration information comprises a resource setting in a channel state information (CSI)-ReportConfig signal. 
     
     
         26 . The UE of  claim 22 , wherein the processor is further configured to perform interference measurement associated with the first waveform. 
     
     
         27 . The UE of  claim 22 , wherein the processor is further configured to:
 transmit an uplink signal including an indication of a capability of the UE for monitoring a different waveform, wherein the capability of the UE comprises a number of different waveforms that can be monitored for channel measurement resources or interference measurement resources with respect to a given waveform associated with a physical downlink shared channel (PDSCH) of the UE; and   wherein the configuration information indicates the second waveform to be monitored, the second waveform being selected based at least in part on the capability of the UE.   
     
     
         28 . A user equipment (UE) comprising:
 means for receiving configuration information specifying a channel measurement resource associated with a first waveform used by a user equipment (UE) on its downlink and an interference measurement resource associated with a second waveform different from the first waveform and associated with air to ground (ATG) interference directed toward the downlink;   means for performing channel measurement using the channel measurement resource and performing interference measurement associated with the interference measurement resource; and   means for providing a channel state information (CSI) report to a base station, the CSI report based at least in part on the channel measurement and the interference measurement.   
     
     
         29 - 30 . (canceled)